Wight kendall



E.D .KENDALL. APPARATUS FOR GARBONIZING ILLUMINATING GAS.

No. 31,720. Patented Mar. 19, 1861.

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E. DWIGHT KENDALL, OF NEW YORK, N. Y.

APPARATUS FOR NAJPHTHALIZING GAS.

Specification of Letters Patent No. 31,720, dated March 19, 1861.

To all whom it may concern:

Be it known that I, E. DWIGHT KENDALL, of the city, county, and State of New York, have invented a new and ImprovedApparatus for CarbonizingIlluminating-Gas; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1, is a vertical section of the apparatus. Fig. 2, is a horizontal section of the same.

Similar letters of reference indicate corresponding parts inboth figures.

In the use of the various apparatus heretofore invented for furnishing a supplyof vapor of naphtha or other liquid hydro'carbon to mingle with illuminating gas near the burners for the increase of its illuminating power, much ditficulty has been experienced from the varying volatility and character of the different hydro-carbon liquids used, and from the eifects of variation in the temperature of the atmosphere.

My invention consists in a certain construction of the apparatus whereby I am enabled so to regulate the supply of vapor as to obviate all difliculty from the above causes.

To enable others skilled in the art to make and use my invention I will proceed to describe its construction and operation.

The particular apparatus represented in the drawing is more especially adapted for application in connection with a single burner but by a proper construction of the inlet and outlet to adapt them to a service or branch pipe an apparatus similar in all other respects and of suitable size could be made to serve for all or any number of the burners in a dwelling house or room or for a number of burners in any place.

A. is a socket whose inlet a, is made to connect with the service pipe or a branch thereof and whose outlet 6, is made to receive the burner or to connect with a pipe leading to the burner or burners. From one side of this socket there branches off two distinct passages c, and (Z, the lower one 0, forming a communication between the inlet a, and the lower part of an upright cylinder B., and the upper one 61, forming a communication between the upper part of the said cylinder and the outlet 5, which has no direct communication with the inlet a, through the the socket A. The lower passage 0, is fitted with a three-way cock C. which is situated at the junction with the said passage, of a transverse passage 6, which communicates with the upper passage d, and the said cock is so constructed that it may shut off the inlet a, wholly or partly from the lower part of the cylinder B. or from the transverse passage 6, so that all the gas may be made to pass through the cylinder or all through the passage 6, without passing through the cylinder, or that a portion may pass in one direction and a portion in the other direction asindicated in Fig. 1, by arrows.

The passage 0, does not communicate directly with the interior of the cylinder B. but with a hollow band f, which surrounds the cylinder and which communicates with the interior of the cylinder by numerous small holes g, g, which distribute the gas evenly all around the cylinder. The said cylinder is open at the bottom which is tightly secured to the open top of the reservoir F. which contains the naphtha or other volatile hydro-carbon liquid. In the center of the reservoir andcylinder B. there stands a much smaller cylinder D. whose purpose is to keep extended a tubular Wick h, said cylinder being secured to the bottom of the reservoir by a screw 2', or other means, being entirely open at the top and having small openings j, 7', in its sides near the bottom. The wick' is closed at the top as shown at h, in Fig. 1, to cover the open top of the cylinder D. like a cap.

Between the cylinders B. and D. there is placed a concentric cylindrical slide E. much shorter than the cylinder D., said slide fitting loosely to the exterior of the wick, but fitting snugly to the portion of the cylinder B. below the hollow band f, that portion of the cylinder being contracted as shown at Z, Z, in Fig. 1, so that while the slide fits it, room enough is left between the slide and the upper part of its interior for the free passage of gas between them.

The slide has connected with it a rod m, passing through a stufiing box a, in the closed top of the cylinder outside of which it is furnished with a knob to be laid hold of for the purpose of moving the slide up or down to uncover less or more of the upper portion of the wick.

When the cock C. is set to close the passage e,to the passage 0, and open the latter to the cylinder, the whole of the gas passes through v the cylinder and in passing over and around the surface of the upper portion of the wick Which is left uncovered by the slide, it takes up in the form of vapor a quantity of the naphtha or other hydro-carbon liquid which is carried up the wick from the reservoir F. by capillary attraction. By raising the slide E. and exposing a smaller quantity of the surface of the Wick the gas is caused to take up a less quantity of vapor and by depressing the slide and exposing a larger quantity of wick the opposite effect is produced.

. When too high a degree of carbonization would be produced by passing the Whole of the gas through the cylinder B. the cock .0. may be so set that two thirds, one half, one third, or any proportion of the Whole quantity of gas may pass through the cylinder to be naphthalized or carbonized, the remainder passing by the passage 0, to the outlet passage cl, Without being carbonized, and the carbonized and uncarbonized portions of the gas mixing in the passage cl, between the passage 0, and the outlet 6.

\Vhen 1t 1s not desired to pass any of the gas in contact with the hydro-carbon, the

cock C. is set to shut the passage 0, from the cylinder B. and open it only to the passage 6, which will cause the whole of the gas to pass by the passage 6, to the outlet 1), Without entering the cylinder B.

\Vhat I claim as my invention and desire to secure by Letters Patent is The combination of the reservoir E. cylinders B. and D. or their equivalents, wick h, and slide E. the whole applied substantially as herein described in relation to each other and to the inlet a, from the supply or service E. DWIGHT KENDALL.

lVitnesses T. L. MILLER, H. B. WVILLMARTI'I. 

